Changing up the timing from their original announcement, Sony will be performing “routine maintenance and improvements for PlayStation Network,” which will last for approximately 90 minutes today, August 18.

As they add, “Anyone who already has an account can still sign in to their PlayStation Network profile, play games, and use most applications while this maintenance is carried out.” However, you won’t be able to access Account Management, PlayStation Video, or complete a purchase in the PlayStation Store.

Sony hasn’t given specifics on what exactly they’ll be improving with the maintenance, but it could be prep for PS4 firmware update 3.00, which recently had its potential changes leaked by a beta tester.